<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			body{
				height: 1200px;
			}
			div{
				background-image: url(../05盒子模型/banner.jpg);
				background-size: 100%;
				/* 固定背景 */
				background-attachment: fixed;
				margin-top: 600px;
				height: 300px;
			}
		</style>
	</head>
	<body>
		<div id="">
			
		</div>
	</body>
</html>
